A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Gary LaPook
Date: 2016 Oct 26, 02:01 -0700
There are several errors in your example on page 45 and I have attached two computations one with the Bygrave and one with a calculator.
At the beginning you exhanged starting latitude with destination latitude The your calculation of the Az and Hc went wrong somewhere.
I notice that you use my notation for 90 degrees as 89-60 to make subtraction easier but you might like to mention that as an introduction.
That is the only part of your manual that i have had the chance to look at.